Our sport headset adopt advanced Wireless V5.0 technology and high-sensitive inbuilt mic with noise canceling technology, deliver crystal clear stereo sound with transmission range up to 32.8ft without barrier. Inbuilt 130mAh rechargeable battery and equipped with USB charging cable, 8Hrs unstoppable HD sound music while only 2Hrs fully be charged. Skin-friendly ear tips, adjustable left/right headset wires and magnetic collar of headset provide an optimal seal and snug fit to wear your headset in place. Optimal for running, jogging, hiking, yoga, exercise, gym, fitness, traveling, etc. due to sweat-proof performance. *Crystal Clear Stereo Sound: Adopt wireless V5.0 technology with stable signal transmitting, offering impressive crystal clear stereo sound with the 32.8ft maximum distance connectivity. Adopt high-sensitive microphone with noise cancellation technology to reduce ambient noise, grasp the details of voice and offer crystal clear sound even in a noisy environment. *8Hrs Work Time & 2Hrs Fully Charged: Inbuilt with 130mAh rechargeable lithium polymer battery and equipped with USB charging cable, 8Hrs unstoppable music time or talking time while only 2Hrs fully be charged. *User Friendly & Multi-use: Featured with separate function buttons and /- (Volume/Track adjustment) Buttons, simply and quickly fulfill almost all functions like answer/end/redial a phone call, play/pause, pairing, power on/off, etc. Easy operation and brings you much convenience. *Snugly Fit & Stable Wearing: Adopt skin-friendly ear tips, 9.45inches neckband,9.85in adjustable left/right earphone wires (via wire controllers), adapt to ear canal with adjustable length to provide a perfect seal and snug fit to wear your headset in place. Magnetic collars of headset attract earbuds and surround your neck properly and never worry about falling out of your earphone even when you are running. *Sweat-proof & Widely Used: Adopt Water-resistant Silicone Gel materials with special treatment can efficiently protects sport earphones from sweat and ensures more guaranteed life span. Optimal for running, jogging, hiking, yoga, exercises, gym, fitness, traveling, etc.. Wireless Version: V5.0 Working Temperature: -10℃- 80℃/14℉-140℉ Microphone Sensitivity: 36-45dB Protocols Supported: HSPv1.2; HFPv1.6, A2DPv1.2, AVRCPv1.4 Talk/Music Time: About 8Hrs Charge Time: 2Hrs Operation Range: 10m/32.8ft Battery: Built-in 130mAh Lithium Polymer Battery Per Earbud Wire Length: 25cm/9.85in Neckband Length: 24cm/9.45in Microphone USB Cable Length: 30cm/11.81in Available Colors: Black; Blue; Red; Purple; Silver; Green; Yellow; White Materials: ABS and Silicone Gel Item Size: 12.5x17x1.7cm/4.93x6.7x0.67in Item Weight: 33.5g/0.08lbs Package Size: 15.7x19.2x2cm/6.19x7.56x0.79in Package Weight: 92g/0.21lbs 1 × Neckband Wireless Headset 2 × Pairs of Extra Eartips 1 × USB Charging Cable 1 × User Manual